NVIDIA H100 SXM5 vs AMD Radeon Instinct MI355X
GPU · Specs Compare
Graphics Card
Release Date
Mar 2022
Jun 2025
Generation
Tesla Hopper
Radeon Instinct
Type
AI GPU
Professional
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1590 MHz
1000 MHz
Boost Clock
1980 MHz
2400 MHz
Memory Clock
1313 MHz
2000 MHz
Memory
Memory Size
80GB
288GB
Memory Type
HBM3
HBM3e
Memory Bus
5120bit
8192bit
Bandwidth
3350GB/s
8.19TB/s
Render Config
SM Count
132
—
Shading Units
16896
16384
TMUs
528
1024
ROPs
24
0
Tensor Cores
528
1216
L1 Cache
256 KB (per SM)
32 KB (per CU)
L2 Cache
50 MB
32 MB
Compute Units
—
256
L3 Cache
—
256 MB
Theoretical Performance
Pixel Rate
47.52 GPixel/s
0 MPixel/s
Texture Rate
1045 GTexel/s
2457.6 GTexel/s
FP16 (half)
267.6 TFLOPS
78.64 TFLOPS
FP32 (float)
66.91 TFLOPS
78.64 TFLOPS
FP64 (double)
33.45 TFLOPS
39.32 TFLOPS
Graphics Processor
GPU Name
GH100
MI350 256CU
Architecture
Hopper
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
4 nm
3 nm
Transistors
80 billion
185 billion
Die Size
814 mm²
Unknown
Board Design
TDP
700W
1400W
Suggested PSU
1100 W
1800 W
Outputs
No outputs
No outputs
Power Connectors
8-pin EPS
None
Graphics Features
DirectX
N/A
N/A
OpenGL
N/A
N/A
OpenCL
3.0
3.0
Vulkan
N/A
N/A
CUDA
9.0
—
Shader Model
N/A
N/A
▲ Specs Compare
Data sourced from official specifications and benchmark tests.